Advertisements
Advertisements
प्रश्न
Why is it necessary to place a plant in the dark before starting an experiment on photosynthesis? Explain.
Give reasons/explain:
It is necessary to place a plant in the dark before starting an experiment on photosynthesis.
उत्तर
The presence of starch is regarded as evidence of photosynthesis. Hence before starting an experiment on photosynthesis, the plant should be placed in the dark for 24-48 hours to destarch the leaves. During this period, all the starch from the leaves will be sent to the storage organs and the leaves will not show the presence of starch. So the various experiments on photosynthesis can be carried out effectively.
APPEARS IN
संबंधित प्रश्न
Define dark reaction.
Choose the correct answer:
Energy is transformed from the light reaction to the dark reaction by _______________
Identify the false statement and rewrite it correctly by changing the first or last word only.
Dark reaction of photosynthesis occurs during night time.
The dark reaction of photosynthesis is known as ______.
Are the following statement true or false? Give a reason in support of your answer.
If a plant is kept in bright light all the 24 hours for a few days, the dark reaction (biosynthetic phase) will fail to occur.
Answer the following question.
Calvin cycle consists of three phases, what are they?
Answer the following question.
Explain the significance of Calvin cycle.
The conversion of several glucose molecules into starch is termed as ______.
Name the two main phases of photosynthesis.
Define the following term:
Polymerisation
